CN105716829A - Optical splitter detection system and detection method - Google Patents
Optical splitter detection system and detection method Download PDFInfo
- Publication number
- CN105716829A CN105716829A CN201410718735.8A CN201410718735A CN105716829A CN 105716829 A CN105716829 A CN 105716829A CN 201410718735 A CN201410718735 A CN 201410718735A CN 105716829 A CN105716829 A CN 105716829A
- Authority
- CN
- China
- Prior art keywords
- light
- detection
- splitting device
- image
- line segment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
The invention is applicable in the technical field of detection, and provides an optical splitter detection system for detecting whether an optical splitter has a broken line area. The optical splitter detection system comprises a light-emitting device and an image detection device which are connected with each other, wherein the light-emitting device irradiates light onto the optical splitter, and the image detection device collects light exiting from the optical splitter to form a detection image, and judges whether the optical splitter has the broken line area according to the detection image. The optical splitter has a light splitting effect, light emitted by the light-emitting device is shot outwards via the optical splitter, the image detection device collects light exiting from the optical splitter to form a detection image, and the image detection device processes the image and judges whether the optical splitter has a broken line defect, so that the detection is more reliable. The invention further provides an optical splitter detection method, which is intuitive in detection and high in detection efficiency.
Description
Technical field
The invention belongs to detection technique field, particularly relate to light-splitting device detection system and detection method.
Background technology
The image-forming principle of stereo-picture Display Technique is: based on the binocular parallax of beholder, allows the left eye of beholder and right eye perception respectively have the disparity map of image difference, and the brain of beholder forms stereo-picture based on the image difference of institute's perception.
According to viewing form, stereo display parts are divided into eyeglass stereoscopic display unit and bore hole formula stereo display parts.Wherein, eyeglass stereoscopic display unit needs beholder's wearing spectacles, just can watch stereo-picture, in the visual range of eyeglass stereoscopic display unit, the viewing location of beholder can arbitrarily move, it can be seen that stereo-picture, but, in viewing eyeglass stereoscopic display unit, it is necessary to by glasses, increase the viewing burden of beholder, the development of restriction stereo display technique, and beholder is when watching bore hole formula stereo display parts, it is not necessary to wearing spectacles, namely can watch stereo-picture.
The bore hole formula stereo display modular construction schematic diagram that Fig. 1 provides for prior art.3 d display device includes light-splitting device 1 ＇ and display floater 2 ＇, and light-splitting device 1 ＇ is arranged at the light emission side of display floater 2 ＇.Light-splitting device 1 ＇ includes spectrophotometric unit 11 ＇ of array arrangement, the spectrophotometric unit 11 ＇ light that goes out to display floater 2 ＇ and carries out light splitting effect.The reason such as making due to technique and cause that light-splitting device 1 ＇ exists broken string region, broken string region will directly affect the display effect of 3 d display device.If light-splitting device 1 ＇ not being carried out burn out detection before assembly, it is directly installed on display floater 2 ＇, it is assembled into 3 d display device, if finding after finishing assembly there is disconnection problem in light-splitting device 1 ＇, do not meet requirement of dispatching from the factory, and normal light-splitting device 1 ＇ cannot be changed, cause that this 3 d display device becomes defect ware, therefore, it is necessary in the pre-assembly light-splitting device 1 ＇ is carried out burn out detection.
Prior art discloses a kind of Lenticular screen detection equipment, including detection base station, traction support arrangement and a transmission support arrangement, detection base station is provided with the main evaluation line of first vertical with the rib of Lenticular screen to be detected, by the refracting characteristic of Lenticular screen, observe the state being arranged on below Lenticular screen to evaluate line for evaluating bending and the flaw of the lens rib of Lenticular screen, when only there is significantly bending or deformation when the somewhere evaluating line, just can confirm that and where there is flaw, and when the quantity adding up flaw in cellar area exceedes quality limit control value, just may determine that this Lenticular screen is substandard products, complicated operation, and the refraction effect according to Lenticular screen is evaluated, there is detection error, affect final detection result.
Summary of the invention
The purpose of the embodiment of the present invention is in that to provide a kind of light-splitting device detection system, it is intended to solve the one or more technical problems caused by limitation and the shortcoming of prior art.
The embodiment of the present invention is realized in, light-splitting device detection system, for detecting whether light-splitting device exists broken string region, described light-splitting device detection system includes light-emitting device and image detection device, light is radiated on described light-splitting device by described light-emitting device, described image detection device gathers the light that of described light-splitting device and detects image to be formed, and whether light-splitting device according to described detection spectral discrimination exists described broken string region.
Specifically, described image detection device includes image acquisition component and image processing section, and described image acquisition component is arranged at the top of described light-splitting device；Wherein, what described image acquisition component gathered described light-splitting device goes out light to form described detection image, and described image processing section receives described detection image, and whether light-splitting device according to described detection spectral discrimination exist described broken string region.
Further, described image processing section includes region detection module, and described region detection module detects the target area in described detection image, and described target area is white space or image-region.
Further, being provided with a plurality of line segment in described target area, described image processing section also includes line segment acquisition module, and described line segment acquisition module obtains inclination angle and the extreme coordinates of each described line segment.
Further, described image processing section also includes line segment link block, described line segment link block connects into detection of straight lines by meeting the first pre-conditioned each described line segment, described first pre-conditioned refers to that the inclination angle of each described line segment is identical, and the distance between adjacent two described line segments is less than described first preset value.
Further, described image processing section includes result output module, and it is second pre-conditioned that described result output module judges that whether described detection of straight lines meets, and output detections result.
Preferably, the described second pre-conditioned length referring to described detection of straight lines is more than the second preset value.
Preferably, the width of described detection image is b, and the first preset value is A1, then A1≤k1B, and 0 < k1≤0.1。
Preferably, described second preset value is A2, then A2≥k2B, and k2≥0.2。
Further, described image processing section also includes image enhancement module, and the edge of each described line segment is carried out image enhancement processing by described image enhancement module.
Further, described image processing section also includes region comparing module, and the comparing module storage of described region has detection template, and described detection template and described detection image are carried out image comparison process by described region comparing module, and export comparison result.
Further, described detection template is blank image.
Further, described image acquisition component includes photographic head and polaroid, and described polaroid is arranged between described photographic head and described light-splitting device, the polarization direction of described polaroid with described go out light polarization direction perpendicular or parallel.
Further, described image acquisition component also includes support, and described photographic head is arranged on described support, and is oppositely arranged with described light-splitting device, and described light-emitting device is installed on the bracket.
Further, described image acquisition component also includes housing, and described support, described light-emitting device, described photographic head may be contained within the cavity of described housing.
The light-splitting device detection system that the embodiment of the present invention provides, light-splitting device is positioned on light-emitting device, image detection device gathers the light that of light-splitting device and detects image to be formed, testing result is obtained according to detection image, if it is pre-conditioned that testing result meets first, then judge that light-splitting device exists broken string region, light-splitting device detection system is adopted directly light-splitting device to be detected, obtain testing result, testing result is accurate, and detect consuming time short, in the pre-assembly, complete the burn out detection to light-splitting device, guarantee the light-splitting device being arranged on display floater 2 ＇, all without disconnection defect, the 3 d display device assembled meets requirement of dispatching from the factory.Relative to prior art, the light-splitting device detection system that the embodiment of the present invention provides adopts the light that goes out that image detection device gathers light-splitting device to form detection image, and obtain testing result according to detection image, detection process is without operator's manual operation, whole-course automation detects, testing result is relatively reliable, eliminates the detection error impact on testing result.
The another object of the embodiment of the present invention is in that to provide light-splitting device detection method, is used for detecting whether light-splitting device exists broken string region, and described light-splitting device detection method includes:
Light is radiated on described light-splitting device by S1；
S2 gathers the light that of described light-splitting device and detects image to be formed；
Whether S3 light-splitting device according to described detection spectral discrimination exists described broken string region.
Further, step S3 includes:
S31 detects the target area in described detection image, and described target area corresponds to described broken string region.
Further, being provided with a plurality of line segment in described target area, step S3 also includes:
S32 obtains inclination angle and the extreme coordinates of each described line segment.
Further, step S3 also includes:
S33 connects into detection of straight lines by meeting the first pre-conditioned each described line segment, and described first pre-conditioned refers to that the inclination angle of each described line segment is identical, and the distance between adjacent two described line segments is less than described first preset value.
Further, step S3 also includes:
It is second pre-conditioned that S34 judges that whether described detection of straight lines meets, and output detections result.
Further, the described second pre-conditioned length referring to described detection of straight lines is more than the second preset value.
Preferably, the width of described detection image is b, and described first preset value is A1, then A1≤k1B, and 0 < k1≤0.1。
Preferably, described second preset value is A2, then A2≥k2B, and k2≥0.2。
Preferably, step S3 also includes:
The edge of each described line segment is carried out image enhancement processing by S35.
Further, step S3 also includes:
S36 storage has detection template；
Described detection image and described detection template are carried out image comparison process by S37, and export comparison result.
Preferably, described detection template is blank image.
The light-splitting device detection method that the present embodiment provides, the light that goes out of the light-splitting device gathering light-splitting device detects image to be formed, testing result is obtained according to detection image, if it is pre-conditioned that testing result meets first, then judge that light-splitting device exists broken string region, directly light-splitting device is detected, obtain testing result, testing result is accurate, and detects consuming time short, in the pre-assembly, complete the burn out detection to light-splitting device, guaranteeing the light-splitting device installed on a display panel, all without disconnection defect, the 3 d display device assembled meets requirement of dispatching from the factory.Relative to prior art, the light-splitting device detection method that the embodiment of the present invention provides gathers the light that of light-splitting device and forms detection image, and obtain testing result according to detection image, detection process is without operator's manual operation, whole-course automation detects, testing result is relatively reliable, eliminates the detection error impact on testing result.
Accompanying drawing explanation
Fig. 1 is the 3 d display device perspective view that prior art provides；
Fig. 2 is the light-splitting device detection system schematic perspective view that the embodiment of the present invention one provides；
Fig. 3 is the light-splitting device detection system structure schematic diagram that the embodiment of the present invention one provides；
Fig. 4 is the image detection device structural representation that the embodiment of the present invention one provides；
Fig. 5 is the image processing section structural representation that the embodiment of the present invention one provides；
Fig. 6 is the image processing section structural representation that the embodiment of the present invention two provides；
Fig. 7 is the light-splitting device testing process schematic diagram that the embodiment of the present invention three provides；
Fig. 8 is the schematic flow sheet of S3 in Fig. 7；
Fig. 9 is the schematic flow sheet of S34 in Fig. 8；
Figure 10 is the light-splitting device testing process schematic diagram that the embodiment of the present invention four provides.
Specific embodiment
In order to make the technical problem to be solved in the present invention, technical scheme and beneficial effect clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the present invention, is not intended to limit the present invention.
Embodiment one
As shown in Figure 1 to Figure 3, the light-splitting device detection system 10 that the embodiment of the present invention provides, for detecting whether light-splitting device 1 ＇ exists broken string region, light-splitting device detection system 10 includes light-emitting device 110 and image detection device 120, when light-splitting device 1 ＇ is detected, light-emitting device 110 provides light source, light is radiated on light-splitting device 1 ＇ by light-emitting device 110, owing to light-splitting device 1 ＇ has light splitting effect, the light that light-emitting device 110 sends is through the light-splitting device 1 outside outgoing of ＇, image detection device 120 gathers the light that of light-splitting device 1 ＇ and detects image to be formed, detection image is carried out image procossing and judges whether light-splitting device 1 ＇ exists broken string region by image detection device 120.Relative and prior art passes through the refraction situation observing Lenticular screen to evaluating line, judge whether Lenticular screen exists flaw, testing result is relatively reliable, detect consuming time short, in the pre-assembly, complete the burn out detection to light-splitting device 1 ＇, guarantee light-splitting device 1 ＇ being arranged on display floater 2 ＇, all without broken string region, the 3 d display device assembled meets requirement of dispatching from the factory, and need not testing staff observe, it is ensured that testing result accurate, eliminate the detection error impact on testing result.The light-splitting device detection system 10 that the embodiment of the present invention provides may determine that simultaneously provides the detection data of light-splitting device 1 ＇ in the position in broken string region for testing staff.
Light-splitting device 1 ＇ can be disparity barrier, Lenticular screen or liquid crystal lens, the light that light-emitting device 110 sends is through light-splitting device 1 ＇ outgoing again, if light-splitting device 1 ＇ has broken string region, then the light that light-emitting device 110 sends by the regional occlusion that breaks, thus, detection image forms line segment, line segment and broken string region one_to_one corresponding, therefore, whether image detection device 120 exists line segment according in detection image, namely can determine that whether light-splitting device 1 ＇ has broken string region, detect more directly perceived.
The light-emitting device 110 that the present embodiment provides can be that backlight module or display floater 2 ＇ etc. can the devices of well-off brightness and the light source being evenly distributed, light-emitting device 110 can continue to provide light source, it is radiated on light-splitting device 1 ＇, image detection device 120 gathers the light that of light-splitting device 1 ＇ and detects image to be formed, similarly, image detection device 120 can also control the fluorescent lifetime of light-emitting device 110, when not having light-splitting device 1 ＇ to carry out to detect or after light-splitting device 1 ＇ detected, image detection device 120 controls light-emitting device 110 and closes, save the energy.
Image detection device 120 can be oppositely arranged with light-splitting device 1 ＇, image detection device 120 forms complete detection image by gathering the light splitting of light-splitting device 1 ＇, so could judge whether light-splitting device 1 ＇ exists broken string region exactly, it is ensured that the reliability of testing result.When detection, light-splitting device 1 ＇ is placed directly on light-emitting device 110, after having detected, light splitting is taken off from light-emitting device 110, easy to operate.
A piece of light-splitting device 1 ＇ can be detected by the light-splitting device detection system 10 that the embodiment of the present invention provides, it is also possible to multi-disc light-splitting device 1 ＇ is detected, improves detection efficiency.
As shown in Fig. 2 and Fig. 4, in the present embodiment, image detection device 120 includes image acquisition component 121 and image processing section 122, image acquisition component 121 is arranged at the top of light-splitting device 1 ＇, the light that goes out for gathering light-splitting device 1 ＇ detects image to be formed, image acquisition component 121 can be photographic head 1211, utilize the imaging function of photographic head 1211, the light that goes out of light-splitting device 1 ＇ is shot, form detection image, easy to operate, and imaging effect is clear, image processing section 122 receives detection image, and according to whether detection spectral discrimination light-splitting device 1 ＇ exists broken string region.Detection image is processed by image processing section 122, in conjunction with existing processing method, as image detects, image cutting etc., judge whether detection image exists line segment, if there is line segment in detection image, then judge that light-splitting device 1 ＇ exists broken string region, judge accurately, detection efficiency is high, shorten the detection time to light-splitting device 1 ＇, simultaneously, detection method relative to prior art, the embodiment of the present invention adopts existing image processing method that detection image is processed, testing result is relatively reliable, and reduce the operation requirement to testing staff, it is easy to testing staff use, and the testing cost increasing light-splitting device 1 ＇ that will not be too much, it is more suitable for extensive use.
As shown in figures 2 and 5, in the present embodiment, image processing section 122 includes region detection module 123, and the target area in region detection module 123 detection detection image, target area is white space or image-region.In the present embodiment, image-region refers to the viewing area including picture material, and white space refers to the viewing area without any picture material.Image acquisition component 121 gathers the light that of light-splitting device 1 ＇ and forms detection image, therefore, by detection image, can reflect whether light-splitting device 1 ＇ exists broken string region, if target area is white space, namely without image in target area, then show that position corresponding with target area for light-splitting device 1 ＇ is without broken string, if target area is image-region, namely there is image in target area, then show that position corresponding with target area for light-splitting device 1 ＇ exists broken string.The region detection module 123 that the present embodiment provides can be image detection device, and detection image is detected, and detection efficiency is high, and testing result is accurate.The light that light-emitting device 110 sends broken string region in light-splitting device 1 ＇, then in detection image, picture material is line segment, the method that the detection method of line segment is included the method based on Hough transformation (HoughTransform) and non-Hough transformation.Line segment detecting method based on Hough transformation first passes through the parameter space that the point in image space is mapped to correspondence, and carries out ballot accumulation, then finds Local modulus maxima in accumulator and carrys out detection of straight lines.Finally the line reflection detected is incident upon original image, determines the end points of straightway.This method has higher robustness, and anti-noise ability is strong, the straightway of fracture or breakage can be detected.The improvement of Hough transformation method, such as randomized hough transform (RandomizedHoughTransform), level Hough transformation (HierarchicalHoughTransform), sequence Hough transformation (SequentialHoughTransform), and backprojection method (BackProjection) etc..
Line segment detection problem is regarded as the Linear correlative analysis problem of image local area pixel by the method for non-Hough transformation.By the pixel of image local area carries out principal component analysis, and the eigenvalue calculating this area pixel point Scatter Matrix carrys out detection of straight lines section.If this region exists straightway, then the pixel point set in this region has significantly high dependency, and therefore, the minimal eigenvalue of corresponding Scatter Matrix is generally very little.Then, can judge whether this region comprises straightway by analysis minimal eigenvalue.If there is broken string region in light-splitting device 1 ＇, region detection module 123 adopts above-mentioned line segment detecting method that detection image is carried out image procossing, obtain the target area in detection image, adopt image processing method, detection image is processed, it is possible to obtain target area exactly, it is not necessary to testing staff carries out subjective observation or operation, guarantee that testing result is relatively reliable, improve detection efficiency.
As shown in figures 2 and 5, in the present embodiment, a plurality of line segment it is provided with in target area, image processing section 122 also includes line segment acquisition module 124, line segment acquisition module 124 obtains inclination angle and the extreme coordinates of each line segment, according to image detecting method, obtain inclination angle and the extreme coordinates of each line segment, utilize existing image processing method detection line segment position in target area, testing result is relatively reliable, and reduce the operation requirement to testing staff, it is easy to testing staff use, and the testing cost of light-splitting device more 1 ＇ that will not be too much, it is more suitable for extensive use.
As shown in figures 2 and 5, in the present embodiment, image processing section 122 also includes line segment link block 125, line segment link block 125 connects into detection of straight lines by meeting first pre-conditioned each line segment, first pre-conditioned refers to that the inclination angle of each line segment is identical, and the distance between adjacent two line segments is less than the first preset value.In target area, it is understood that there may be a plurality of line segment, through the process of line segment acquisition module 124, it is thus achieved that the inclination angle of each line segment and extreme coordinates, line segment link block 125 is identical by inclination angle, and line segment is smaller than the two lines section of the first preset value and connects into detection of straight lines.Owing to the light-splitting device 1 ＇ reason producing to break has multiple, and the form of region performance of breaking also is not quite similar, if the light splitting of light-splitting device 1 ＇ is affected little by broken string region, in tolerance interval, can assert that this light-splitting device 1 ＇ is without broken string region, therefore, need each line segment in target area is merged process, and the length according to the detection of straight lines after merging treatment determines whether light-splitting device 1 ＇ exists broken string region, if the length of detection of straight lines exceeds examination criteria, then assert that this light-splitting device 1 ＇ exists disconnection problem, if detection of straight lines is without departing from examination criteria, and meet normal instructions for use, then assert that this light-splitting device 1 ＇ is absent from disconnection problem, the light-splitting device detection system 10 that the embodiment of the present invention provides can according to requirement of dispatching from the factory, set examination criteria, while guaranteeing to meet testing requirement, improve the yields of product.
As shown in figures 2 and 5, in the present embodiment, image processing section 122 includes result output module 126, after light-splitting device 1 ＇ has been detected, length according to detection of straight lines exports corresponding testing result, and when detection of straight lines meets second pre-conditioned, output light-splitting device 1 ＇ exists broken string region, when detection of straight lines is unsatisfactory for second pre-conditioned, export this light-splitting device 1 ＇ and be absent from broken string region.In the present embodiment, whether second is met pre-conditioned according to detection of straight lines, export corresponding testing result, second pre-conditioned can by testing staff according to Product checking require set, easy to operate, it is possible not only to light-splitting device 1 ＇ is carried out burn out detection, output detections result, and require to set according to product export, meet product diversification demand.
In the present embodiment, the second pre-conditioned length referring to detection of straight lines is more than the second preset value, when detection of straight lines is more than the second preset value, result output module 126 exports light-splitting device 1 ＇ and there is broken string region, when detection of straight lines is less than the second preset value, result output module 126 exports light-splitting device 1 ＇ and is absent from broken string region, set the second pre-conditioned detection range, light-splitting device detection system 10 is by detecting the length of detection of straight lines, thus judging whether light-splitting device 1 ＇ exists broken string region, detection is directly perceived, and do not need testing staff and observe detection process, alleviate the work load of testing staff, and adopt image processing method that the length of detection of straight lines is detected, testing result is reliable, and it is pre-conditioned to require to set second according to actual production, light-splitting device 1 ＇ detection is more flexible.
In the present embodiment, the width of detection image is b, and the first preset value is A1, then A1≤k1B, and 0 < k1≤ 0.1, image acquisition component 121 gathers the light that of light-splitting device 1 ＇ and detects image to be formed, imaging performance according to image acquisition component 121, can determine that the value of the width b of detection image, by setting the scope of the first preset value, if the distance between two line segments is less than the first preset value, then two line segments are connected formation detection of straight lines by line segment link block 125, again detection of straight lines is detected, to obtain the testing result of light-splitting device 1 ＇, can according to requirement of dispatching from the factory, set examination criteria, while guaranteeing to meet testing requirement, improve the yields of product.
In the present embodiment, the second preset value is A2, then A2≥k2B, and k2>=0.2, if the length of detection of straight lines is more than the second preset value, then assert that this light-splitting device 1 ＇ exists broken string region, if the length of detection of straight lines is less than the second preset value, be unsatisfactory for second pre-conditioned, then this light-splitting device 1 ＇ is without broken string region, meet quality inspection requirement, next step assembling can be carried out.Guaranteeing light-splitting device 1 ＇ being arranged on display floater 2 ＇, all without broken string region, 3 d display device assemble meets requirement of dispatching from the factory, and need not testing staff observe, it is ensured that testing result accurate, eliminates and detects the error impact on testing result.The light-splitting device detection system 10 that the embodiment of the present invention provides, it may also be determined that the position in broken string region, provides the detection data of light-splitting device 1 ＇ for testing staff.
As shown in figures 2 and 5, in the present embodiment, image processing section 122 also includes image enhancement module 127, the edge of each line segment is carried out image enhancement processing by image enhancement module 127, owing to target area being likely to comprise a plurality of line segment, each line segment is carried out image enhancement processing, the picture contrast comprising crackle owing to photographing in image acquisition component 121 is not high, or edge is not as obvious, so corresponding line segment can not be detected in Line segment detection process, it is therefore necessary to do the enhancing of image.The principle of image enhaucament: the brightness value saltus step of adjacent edges relatively larger (comparing other relatively flat regions) in image, if the details of the image collected is fuzzyyer, then the saltus step at edge can be utilized to strengthen image.
As shown in Figure 2, in the present embodiment, image acquisition component 121 includes photographic head 1211 and polaroid 1212, polaroid 1212 is arranged between photographic head 1211 and light-splitting device 1 ＇, the polarization direction of polaroid 1212 is perpendicular or parallel with the polarization direction going out light, if there is broken string region in light-splitting device 1 ＇, the light that light-emitting device 110 sends is through light-splitting device 1 ＇, light-splitting device 1 ＇ will not be changed in broken string region and send the polarization direction of polarized light, if the polarization direction setting polarized light is vertical with the polarization direction going out light, then polaroid 1212 block major part light-splitting device 1 ＇ go out light, and the going out light and can enter in photographic head 1211 through polaroid 1212 of region of breaking, thus in detection image, broken string place, region place forms bright line segment.Similarly, if the polarization direction of polaroid 1212 is parallel with the polarization direction going out light, then photographic head 1211 receive major part light-splitting device 1 ＇ go out light, and region of breaking goes out light and can not enter in photographic head 1211, thus in detection image, broken string place, region place forms dark line segment, in combining image processing method, line segment in detection image is processed, thus realizing the detection to light-splitting device 1 ＇.Adopt polaroid 1212, judge broken string region more exactly, eliminate light-splitting device 1 ＇ and go out the impact of light, it is ensured that testing result is accurate.
As shown in Figure 2, in the present embodiment, image acquisition component 121 also includes support 1213, photographic head 1211 is arranged on support 1213, and be oppositely arranged with light-splitting device 1 ＇, light-emitting device 110 is arranged on support 1213, and what photographic head 1211 can be complete capture light-splitting device 1 ＇ goes out light, guarantee whether reflection light-splitting device 1 ＇ that the detection image formed can be complete exists broken string region, easy to operate.And when using, photographic head 1211 is placed on support 1213, in image acquisition process, photographic head 1211 holding position is constant, it is possible to multiple light-splitting device 1 ＇ process, improves detection efficiency.
As shown in Figure 2, in the present embodiment, image acquisition component 121 also includes housing 1214, owing to the image acquisition process of photographic head 1211 can be produced impact by exterior light, therefore, for avoiding the external environment impact on testing result, support 1213, light-emitting device 110, photographic head 1211 be may be contained within the cavity of housing 1214, it is ensured that testing result reliable.
Embodiment two
As shown in Fig. 2 and Fig. 6, light-splitting device detection system 10 structure that light-splitting device detection system and the embodiment one that the present embodiment provides provides is substantially the same, it is different in that, image processing section 122 also includes region comparing module 128, region comparing module 128 storage has detection template, detection template is carried out image comparison process with detection image by region comparing module 128, and exports comparison result.Can set that detection template is without display image, processed by image comparison, if comparison result is different from detection template for detection image, namely detection image includes display content, then there is broken string region in light-splitting device 1 ＇, if comparison result is identical with detection template for detection image, namely detection image is without any display content, then comparison result is that light-splitting device 1 ＇ is absent from broken string region.Certainly, detection template can also be set and there is display image, processed by image comparison, if detection image is different from detection template, namely detection image is without display content, then light-splitting device 1 ＇ is absent from broken string region, if detection image is identical with detection template, namely there is display content in detection image, then light-splitting device 1 ＇ exists broken string region.Using detection template as comparison standard, by image comparison, it is determined that whether light-splitting device 1 ＇ exists broken string region, easy to operate, furthermore, it is possible to according to actually detected setting detection template, more conform to actual production.
As shown in Fig. 2 and Fig. 6, in the present embodiment, detection template is blank image, and the blank image in the present embodiment refers to the image not comprising any display content.Processed by image comparison, if detection image is different from detection template, namely detection image is not blank image, and detection image includes display content, then region comparing module 128 exports comparison result, there is broken string region in light-splitting device 1 ＇, if detection image is identical with detection template, namely detection image is blank image, and detection image is without any display content, then region comparing module 128 exports comparison result, and light-splitting device 1 ＇ is absent from broken string region.This detection template freely can be set by testing staff, simple to operate, and detection efficiency is high, simultaneously, it is ensured that be arranged on light-splitting device 1 ＇ on display floater 2 ＇, all without broken string region, the 3 d display device assembled meets requirement of dispatching from the factory, and need not testing staff observe, it is ensured that testing result accurate, eliminate the detection error impact on testing result.
Embodiment three
As shown in Figure 1, Figure 2 with shown in Fig. 7, the another object of the embodiment of the present invention is in that to provide light-splitting device detection method, is used for detecting whether light-splitting device 1 ＇ exists broken string region, and light-splitting device 1 ＇ detection method includes:
Light is radiated on light-splitting device 1 ＇ by S1；
S2 gathers the light that of light-splitting device 1 ＇ and detects image to be formed；
S3 is according to whether detection spectral discrimination light-splitting device 1 ＇ exists broken string region.
Owing to light-splitting device 1 ＇ has light splitting effect, being radiated at the outside outgoing of light of light-splitting device 1 ＇, what gather light-splitting device 1 ＇ goes out light to form detection image, and according to whether detection spectral discrimination light-splitting device 1 ＇ exists broken string region.Relative and prior art passes through the refraction situation observing Lenticular screen to evaluating line, judge whether Lenticular screen exists flaw, testing result is relatively reliable, detect consuming time short, in the pre-assembly, complete the burn out detection to light-splitting device 1 ＇, guarantee light-splitting device 1 ＇ being arranged on display floater 2 ＇, all without broken string region, the 3 d display device assembled meets requirement of dispatching from the factory, and need not testing staff observe, it is ensured that testing result accurate, eliminate the detection error impact on testing result.The light-splitting device 1 ＇ detection method that the embodiment of the present invention provides may determine that the position in broken string region simultaneously, provides the detection data of light-splitting device 1 ＇ for testing staff.
Light-splitting device 1 ＇ can be disparity barrier, Lenticular screen or liquid crystal lens, it is radiated at the light on light-splitting device 1 ＇ through light-splitting device 1 ＇ outgoing again, if light-splitting device 1 ＇ has broken string region, then light is by the regional occlusion that breaks, thus, detection image forms line segment, whether line segment and broken string region one_to_one corresponding, therefore, exist line segment according in detection image, namely can determine that whether light-splitting device 1 ＇ has broken string region, easy to detect.
The present embodiment can adopt backlight module or display floater 2 ＇ etc. can well-off brightness and the light source being evenly distributed, light source prolonged exposure is on light-splitting device 1 ＇, and then the light that goes out gathering light-splitting device 1 ＇ detects image to be formed, similarly, the fluorescent lifetime of light-emitting device 110 can also be controlled, when not having light-splitting device 1 ＇ to carry out to detect or after light-splitting device 1 ＇ detected, control to close light source, save the energy.
In the present embodiment, form complete detection image by gathering the light splitting of light-splitting device 1 ＇, so could judge whether light-splitting device 1 ＇ exists broken string region exactly, it is ensured that the reliability of testing result.
A piece of light-splitting device 1 ＇ can be detected by the light-splitting device 1 ＇ detection method that the embodiment of the present invention provides, it is also possible to multi-disc light-splitting device 1 ＇ is detected, and improves detection efficiency.
As shown in Fig. 2 and Fig. 8, step S3 includes:
Target area in S31 detection detection image, target area is white space or image-region.
In the present embodiment, image-region refers to the viewing area including picture material, and white space refers to the viewing area without any picture material.The light that goes out gathering light-splitting device 1 ＇ forms detection image, therefore, by detection image, can reflect whether light-splitting device 1 ＇ exists broken string region, if target area is white space, namely without image in target area, then show that position corresponding with target area for light-splitting device 1 ＇ is without broken string, if target area is image-region, namely there is image in target area, then show that position corresponding with target area for light-splitting device 1 ＇ exists broken string.Light broken string region in light-splitting device 1 ＇, then, in detection image, picture material is line segment.
The method that the detection method of line segment is included the method based on Hough transformation (HoughTransform) and non-Hough transformation.Line segment detecting method based on Hough transformation first passes through the parameter space that the point in image space is mapped to correspondence, and carries out ballot accumulation, then finds Local modulus maxima in accumulator and carrys out detection of straight lines.Finally the line reflection detected is incident upon original image, determines the end points of straightway.This method has higher robustness, and anti-noise ability is strong, the straightway of fracture or breakage can be detected.The improvement of Hough transformation method, such as randomized hough transform (RandomizedHoughTransform), level Hough transformation (HierarchicalHoughTransform), sequence Hough transformation (SequentialHoughTransform), and backprojection method (BackProjection) etc..
Line segment detection problem is regarded as the Linear correlative analysis problem of image local area pixel by the method for non-Hough transformation.By the pixel of image local area carries out principal component analysis, and the eigenvalue calculating this area pixel point Scatter Matrix carrys out detection of straight lines section.If this region exists straightway, then the pixel point set in this region has significantly high dependency, and therefore, the minimal eigenvalue of corresponding Scatter Matrix is generally very little.Then, can judge whether this region comprises straightway by analysis minimal eigenvalue.If there is broken string region in light-splitting device 1 ＇, adopt above-mentioned line segment detecting method that detection image is carried out image procossing, obtain the target area in detection image, adopt image processing method, detection image is processed, it is possible to obtain target area exactly, it is not necessary to testing staff carries out subjective observation or operation, guarantee that testing result is relatively reliable, improve detection efficiency.
In the present embodiment, line segment is regarded as the rectangle that width is 0, the process to detection image, S31 includes following operation:
S311 sets detection image as I, is zoomed in and out by detection image I and obtains processing image IS, and the ratio of convergent-divergent is 0.8.
The angle LLA of gradient magnitude | Is | of the S312 computing each pixel of image IS and the tangent line with gradient vertical, is then ranked up pixel according to gradient magnitude, is stored in gradient sequencing table.
This point, according to gradient magnitude | Is | < p, p=2.0/sin (22.5), is labeled as { USED, UNUSED} according to the result judged by the S313 every bit to processing in image IS
S314 finds out the some P of bigger gradient in gradient sequencing table, if being marked as USED, then finds out a point from table again；If being labeled as UNUSED, then turn next step S315.
S315 carries out region growth at pixel P place.The foundation increased is to be more or less the same in the neighborhood point of 22.5 degree with this LLA.
S316 simulates a rectangle r for the region increased.
If the LLA at S317 rectangle midpoint differs the ratio of the point less than 22.5 degree less than 70% with the angle of principal direction, rectangle is reduced, until meeting requirement.
S318 calculates the false-alarm probability nfa of final rectangle, calculates false-alarm probability according to the quantity of point consistent with rectangular orientation in rectangle.Nfa=(MN)5/2(n, k, p), M, N is width and the height of image to γ B, and γ is an attempt to different p is worth number of times, B (n, k, p) the tail distribution of binomial distribution.
If S319 nfa < 0.1, think that this region is straight line region, store the rectangle in this region, otherwise abandon this rectangle.
S3110 turns S314, if not having available point in sequencing table, stops.
Passing through aforesaid operations, it is achieved the detection to detection image, it is thus achieved that target area, adopt automated image to process, detection speed is fast, and testing result is accurate, reduces the work load of testing staff.
As shown in Fig. 2 and Fig. 8, being provided with a plurality of line segment in target area, step S3 also includes:
S32 obtains inclination angle and the extreme coordinates of each line segment.Utilize existing image processing method detection line segment position in target area, testing result is relatively reliable, and reduces the operation requirement to testing staff, it is simple to testing staff uses, and the testing cost of light-splitting device more 1 ＇ that will not be too much, it is more suitable for extensive use.
As shown in Fig. 2 and Fig. 8, step S3 also includes:
S33 connects into detection of straight lines by meeting first pre-conditioned each line segment, and first pre-conditioned refers to that the inclination angle of each line segment is identical, and the distance between adjacent two line segments is less than the first preset value.In target area, it is understood that there may be a plurality of line segment, treated, it is thus achieved that the inclination angle of each line segment and extreme coordinates then inclination angle is identical, and line segment is smaller than the two lines section of the first preset value and connects into detection of straight lines.Owing to the light-splitting device 1 ＇ reason producing to break has multiple, and the form of region performance of breaking also is not quite similar, if the light splitting of light-splitting device 1 ＇ is affected little by broken string region, in tolerance interval, can assert that this light-splitting device 1 ＇ is without broken string region, therefore, need each line segment in target area is merged process, and the length according to the detection of straight lines after merging treatment determines whether light-splitting device 1 ＇ exists broken string region, if the length of detection of straight lines exceeds examination criteria, then assert that this light-splitting device 1 ＇ exists disconnection problem, if detection of straight lines is without departing from examination criteria, and meet normal instructions for use, then assert that this light-splitting device 1 ＇ is absent from disconnection problem, the light-splitting device 1 ＇ detection method that the embodiment of the present invention provides can according to requirement of dispatching from the factory, set examination criteria, while guaranteeing to meet testing requirement, improve the yields of product.
As shown in Fig. 2, Fig. 8 and Fig. 9, step S3 also includes:
It is second pre-conditioned that S34 judges that whether detection of straight lines meets, and output detections result.After light-splitting device 1 ＇ has been detected, length according to detection of straight lines exports corresponding testing result, and when detection of straight lines meets second pre-conditioned, output light-splitting device 1 ＇ exists broken string region, when detection of straight lines is unsatisfactory for second pre-conditioned, export this light-splitting device 1 ＇ and be absent from broken string region.In the present embodiment, whether second is met pre-conditioned according to detection of straight lines, export corresponding testing result, second pre-conditioned can by testing staff according to Product checking require set, easy to operate, it is possible not only to light-splitting device 1 ＇ is carried out burn out detection, output detections result, and require to set according to product export, meet product diversification demand.
In the present embodiment, the second pre-conditioned length referring to detection of straight lines is more than the second preset value, if the length of detection of straight lines is more than the second preset value, then there is broken string region in output light-splitting device 1 ＇, if the length of detection of straight lines is less than the second preset value, then output light-splitting device 1 ＇ is absent from broken string region.Set the second pre-conditioned detection range, light-splitting device 1 ＇ detection method is by detecting the length of detection of straight lines, thus judging whether light-splitting device 1 ＇ exists broken string region, detection is directly perceived, and does not need testing staff and observe detection process, alleviates the work load of testing staff, and adopt image processing method that the length of detection of straight lines is detected, testing result is reliable, and can require that setting second is pre-conditioned according to actual production, and light-splitting device 1 ＇ detection is more flexible.
In the present embodiment, the width of detection image is b, and the first preset value is A1, then A1≤k1B, and 0 < k1≤ 0.1.What gather light-splitting device 1 ＇ goes out light to form detection image, can determine that the value of the width b of detection image, by setting the scope of the first preset value, if the distance between two line segments is less than the first preset value, then two line segments is connected and form detection of straight lines, again detection of straight lines is detected, to obtain the testing result of light-splitting device 1 ＇, it is possible to according to requirement of dispatching from the factory, set examination criteria, while guaranteeing to meet testing requirement, improve the yields of product.
In the present embodiment, the second preset value is A2, then A2≥k2B, and k2>=0.2.If the length of detection of straight lines is more than the second preset value, then assert that this light-splitting device 1 ＇ exists broken string region, if the length of detection of straight lines is less than the second preset value, it is unsatisfactory for second pre-conditioned, then this light-splitting device 1 ＇ is without broken string region, meets quality inspection requirement, can carry out next step assembling.Guaranteeing light-splitting device 1 ＇ being arranged on display floater 2 ＇, all without broken string region, 3 d display device assemble meets requirement of dispatching from the factory, and need not testing staff observe, it is ensured that testing result accurate, eliminates and detects the error impact on testing result.The light-splitting device 1 ＇ detection method that the embodiment of the present invention provides, it may also be determined that the position in broken string region, provides the detection data of light-splitting device 1 ＇ for testing staff.
As shown in Fig. 2 and Fig. 8, step S3 also includes:
The edge of each line segment is carried out image enhancement processing by S35.Owing to target area being likely to comprise a plurality of line segment, each line segment is carried out image enhancement processing, and owing to the picture contrast comprising crackle collected is not high, or edge is not as obvious, so corresponding line segment can not be detected in Line segment detection process, it is therefore necessary to do the enhancing of image.The principle of image enhaucament: the brightness value saltus step of adjacent edges relatively larger (comparing other relatively flat regions) in image, if the details of the image collected is fuzzyyer, then the saltus step at edge can be utilized to strengthen image.
Embodiment four
As shown in Fig. 2 and Figure 10, the light-splitting device detection method that the light-splitting device detection method that the present embodiment provides provides with embodiment three is substantially the same, and is different in that, step S3 also includes:
S36 storage has detection template；
Detection image and detection module are carried out image comparison process by S37, and export comparison result.Detection image and detection template are carried out image comparison process, to judge whether light-splitting device 1 ＇ exists broken string region.Can set that detection template is without display image, processed by image comparison, if comparison result is different from detection template for detection image, namely detection image includes display content, then there is broken string region in light-splitting device 1 ＇, if comparison result is identical with detection template for detection image, namely detection image is without any display content, then light-splitting device 1 ＇ is absent from broken string region.Certainly, detection template can also be set and there is display image, processed by image comparison, if detection image is different from detection template, namely detection image is without display content, then light-splitting device 1 ＇ is absent from broken string region, if detection image is identical with detection template, namely there is display content in detection image, then light-splitting device 1 ＇ exists broken string region.This detection template freely can be set by testing staff, simple to operate, and detection efficiency is high.Using detection template as comparison standard, by image comparison, it is determined that whether light-splitting device 1 ＇ exists broken string region, easy to operate, furthermore, it is possible to according to actually detected setting detection template, more conform to actual production.
In the present embodiment, it is preferable that detection template is blank image.Blank image in embodiment refers to the image not comprising any display content.Processed by image comparison, if comparison result is different from detection template for detection image, namely detection image is not blank image, detection image includes display content, being then that light-splitting device 1 ＇ exists broken string region, if comparison result is identical with detection template for detection image, namely detection image is blank image, detection image without any display content, then judges that light-splitting device 1 ＇ is absent from broken string region.This detection template freely can be set by testing staff, simple to operate, and detection efficiency is high, simultaneously, it is ensured that be arranged on light-splitting device 1 ＇ on display floater 2 ＇, all without broken string region, the 3 d display device assembled meets requirement of dispatching from the factory, and need not testing staff observe, it is ensured that testing result accurate, eliminate the detection error impact on testing result.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all any amendment, equivalent replacement and improvement etc. made within the spirit and principles in the present invention, should be included within protection scope of the present invention.
Claims (26)
1. light-splitting device detection system, for detecting whether light-splitting device exists broken string region, it is characterized in that: described light-splitting device detection system includes light-emitting device and image detection device, light is radiated on described light-splitting device by described light-emitting device, described image detection device gathers the light that of described light-splitting device and detects image to be formed, and whether light-splitting device according to described detection spectral discrimination exists described broken string region.
2. light-splitting device detection system as claimed in claim 1, it is characterised in that: described image detection device includes image acquisition component and image processing section, and described image acquisition component is arranged at the top of described light-splitting device；Wherein, what described image acquisition component gathered described light-splitting device goes out light to form described detection image, and described image processing section receives described detection image, and whether light-splitting device according to described detection spectral discrimination exist described broken string region.
3. light-splitting device detection system as claimed in claim 2, it is characterised in that: described image processing section includes region detection module, and described region detection module detects the target area in described detection image, and described target area is white space or image-region.
4. light-splitting device detection system as claimed in claim 3, it is characterised in that: being provided with a plurality of line segment in described target area, described image processing section also includes line segment acquisition module, and described line segment acquisition module obtains inclination angle and the extreme coordinates of each described line segment.
5. light-splitting device detection system as claimed in claim 4, it is characterized in that: described image processing section also includes line segment link block, described line segment link block connects into detection of straight lines by meeting the first pre-conditioned each described line segment, described first pre-conditioned refers to that the inclination angle of each described line segment is identical, and the distance between adjacent two described line segments is less than described first preset value.
6. light-splitting device detection system as claimed in claim 5, it is characterised in that: described image processing section includes result output module, and described result output module judges that whether satisfied described detection of straight lines is second pre-conditioned, and output detections result.
7. light-splitting device detection system as claimed in claim 6, it is characterised in that: the described second pre-conditioned length referring to described detection of straight lines is more than the second preset value.
8. light-splitting device detection system as claimed in claim 7, it is characterised in that: the width of described detection image is b, and the first preset value is A1, then A1≤k1B, and 0 < k1≤0.1。
9. light-splitting device detection system as claimed in claim 8, it is characterised in that: described second preset value is A2, then A2≥k2B, and k2≥0.2。
10. the light-splitting device detection system as according to any one of claim 4 to 9, it is characterised in that: described image processing section also includes image enhancement module, and the edge of each described line segment is carried out image enhancement processing by described image enhancement module.
11. light-splitting device detection system as claimed in claim 2, it is characterized in that: described image processing section also includes region comparing module, the comparing module storage of described region has detection template, described detection template and described detection image are carried out image comparison process by described region comparing module, and export comparison result.
12. light-splitting device detection system as claimed in claim 11, it is characterised in that: described detection template is blank image.
13. the light-splitting device detection system as according to any one of claim 2 to 9, it is characterized in that: described image acquisition component includes photographic head and polaroid, described polaroid is arranged between described photographic head and described light-splitting device, the polarization direction of described polaroid with described go out light polarization direction perpendicular or parallel.
14. light-splitting device detection system as claimed in claim 13, it is characterised in that: described image acquisition component also includes support, and described photographic head is arranged on described support, and is oppositely arranged with described light-splitting device, and described light-emitting device is installed on the bracket.
15. light-splitting device detection system as claimed in claim 14, it is characterised in that: described image acquisition component also includes housing, and described support, described light-emitting device, described photographic head may be contained within the cavity of described housing.
16. light-splitting device detection method, it is used for detecting whether light-splitting device exists broken string region, it is characterised in that: described light-splitting device detection method includes:
Light is radiated on described light-splitting device by S1；
S2 gathers the light that of described light-splitting device and detects image to be formed；
Whether S3 light-splitting device according to described detection spectral discrimination exists described broken string region.
17. light-splitting device detection method as claimed in claim 16, it is characterised in that: step S3 includes:
S31 detects the target area in described detection image, and described target area corresponds to described broken string region.
18. light-splitting device detection method as claimed in claim 17, it is characterised in that: being provided with a plurality of line segment in described target area, step S3 also includes:
S32 obtains inclination angle and the extreme coordinates of each described line segment.
19. light-splitting device detection method as claimed in claim 18, it is characterised in that: step S3 also includes:
S33 connects into detection of straight lines by meeting the first pre-conditioned each described line segment, and described first pre-conditioned refers to that the inclination angle of each described line segment is identical, and the distance between adjacent two described line segments is less than described first preset value.
20. light-splitting device detection method as claimed in claim 19, it is characterised in that: step S3 also includes:
It is second pre-conditioned that S34 judges that whether described detection of straight lines meets, and output detections result.
21. light-splitting device detection method as claimed in claim 20, it is characterised in that: the described second pre-conditioned length referring to described detection of straight lines is more than the second preset value.
22. light-splitting device detection method as claimed in claim 21, it is characterised in that: the width of described detection image is b, and described first preset value is A1, then A1≤k1B, and 0 < k1≤0.1。
23. light-splitting device detection method as claimed in claim 22, it is characterised in that: described second preset value is A2, then A2≥k2B, and k2≥0.2。
24. the light-splitting device detection method as according to any one of claim 18 to 23, it is characterised in that: step S3 also includes:
The edge of each described line segment is carried out image enhancement processing by S35.
25. light-splitting device detection method as claimed in claim 16, it is characterised in that: step S3 also includes:
S36 storage has detection template；
Described detection image and described detection template are carried out image comparison process by S37, and export comparison result.
26. light-splitting device detection method as claimed in claim 25, it is characterised in that: described detection template is blank image.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410718735.8A CN105716829B (en) | 2014-12-01 | 2014-12-01 | Light-splitting device detection system and detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410718735.8A CN105716829B (en) | 2014-12-01 | 2014-12-01 | Light-splitting device detection system and detection method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105716829A true CN105716829A (en) | 2016-06-29 |
| CN105716829B CN105716829B (en) | 2019-08-06 |
Family
ID=56146167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410718735.8A Active CN105716829B (en) | 2014-12-01 | 2014-12-01 | Light-splitting device detection system and detection method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105716829B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107740232A (en) * | 2017-10-16 | 2018-02-27 | 杭州琦星机器人科技有限公司 | Wire-off detection device for sewing machine, detection method and sewing machine |
| CN108810527A (en) * | 2018-06-13 | 2018-11-13 | 北京旷视科技有限公司 | Scatterer method for detecting abnormality, device and electronic equipment |
| CN109669285A (en) * | 2019-02-13 | 2019-04-23 | 珠海格力智能装备有限公司 | Liquid crystal display assembles device and liquid crystal display assembly method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010175491A (en) * | 2009-02-02 | 2010-08-12 | Seiko Epson Corp | Apparatus and method for inspecting nozzle plate |
| JP2011064606A (en) * | 2009-09-18 | 2011-03-31 | National Printing Bureau | Quality inspection device and method of quality inspection |
| JP2011237303A (en) * | 2010-05-11 | 2011-11-24 | Sumco Corp | Wafer defect detection device and wafer defect detection method |
| JP2012002648A (en) * | 2010-06-16 | 2012-01-05 | Naoetsu Electronics Co Ltd | Wafer detect inspection device |
| JP2013065647A (en) * | 2011-09-16 | 2013-04-11 | Fuji Electric Co Ltd | Semiconductor substrate defect inspection device, semiconductor substrate defect inspection method, and semiconductor device manufacturing method using the same |
| CN103175847A (en) * | 2013-03-19 | 2013-06-26 | 哈尔滨理工大学 | Grating surface blemish detection device |
| CN203746143U (en) * | 2014-03-11 | 2014-07-30 | 威海华菱光电股份有限公司 | Image detection apparatus |
-
2014
- 2014-12-01 CN CN201410718735.8A patent/CN105716829B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010175491A (en) * | 2009-02-02 | 2010-08-12 | Seiko Epson Corp | Apparatus and method for inspecting nozzle plate |
| JP2011064606A (en) * | 2009-09-18 | 2011-03-31 | National Printing Bureau | Quality inspection device and method of quality inspection |
| JP2011237303A (en) * | 2010-05-11 | 2011-11-24 | Sumco Corp | Wafer defect detection device and wafer defect detection method |
| JP2012002648A (en) * | 2010-06-16 | 2012-01-05 | Naoetsu Electronics Co Ltd | Wafer detect inspection device |
| JP2013065647A (en) * | 2011-09-16 | 2013-04-11 | Fuji Electric Co Ltd | Semiconductor substrate defect inspection device, semiconductor substrate defect inspection method, and semiconductor device manufacturing method using the same |
| CN103175847A (en) * | 2013-03-19 | 2013-06-26 | 哈尔滨理工大学 | Grating surface blemish detection device |
| CN203746143U (en) * | 2014-03-11 | 2014-07-30 | 威海华菱光电股份有限公司 | Image detection apparatus |
Non-Patent Citations (2)
| Title |
|---|
| 冯超: "基于机器视觉的光栅表面缺陷检测***开发", 《中国优秀硕士学位论文全文数据库信息科技辑》 * |
| 孙东明: "太阳能电池片裂纹检测***图像处理模块的设计与实现", 《中国优秀硕士学位论文全文数据库信息科技辑（月刊）》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107740232A (en) * | 2017-10-16 | 2018-02-27 | 杭州琦星机器人科技有限公司 | Wire-off detection device for sewing machine, detection method and sewing machine |
| CN108810527A (en) * | 2018-06-13 | 2018-11-13 | 北京旷视科技有限公司 | Scatterer method for detecting abnormality, device and electronic equipment |
| CN109669285A (en) * | 2019-02-13 | 2019-04-23 | 珠海格力智能装备有限公司 | Liquid crystal display assembles device and liquid crystal display assembly method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105716829B (en) | 2019-08-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TWI475254B (en) | Mounting accuracy inspection method and inspection apparatus using the inspection method | |
| US9019354B2 (en) | Calibration of an autostereoscopic display system | |
| CN103048333B (en) | Appearance detection equipment and method | |
| CN104023223B (en) | Display control method, Apparatus and system | |
| US20100328653A1 (en) | Method and system of evaluating a stereo image displaying panel | |
| CN106707448B (en) | Adjusting system and adjusting method for lens assembly and display module | |
| CN104216133B (en) | A kind of vision area depth adjustable bore hole 3D display methods, device and system | |
| CN104102394A (en) | Optical multi-point touch control equipment and method | |
| CN103293692B (en) | A kind of bore hole stereo-picture display control method and device | |
| WO2016150112A1 (en) | Method and apparatus for adjusting brightness of display screen | |
| CN108139591A (en) | 3 d display, the three-dimensional display apparatus and its manufacturing method for including it | |
| CN104034516A (en) | Machine vision based LED detection device and detection method thereof | |
| CN105446050A (en) | 3D (three dimensional) display control system and method | |
| CN105716829A (en) | Optical splitter detection system and detection method | |
| WO2016161769A1 (en) | Liquid crystal display device and control method therefor | |
| CN104766310B (en) | light source detection system and detection method | |
| CN102384402A (en) | Backlight module and display device with same | |
| CN109782452B (en) | Stereoscopic image generation method, imaging method and system | |
| CN109528156A (en) | A kind of self-help intelligent visual function screening system | |
| CN104019752B (en) | The thickness evenness detection method of display screen, Apparatus and system | |
| CN204229077U (en) | LCD LCD screen detection device | |
| CN109194851A (en) | A kind of ultrashort burnt Vision imaging system of miniaturization | |
| KR101446984B1 (en) | Apparatus for inspecting defect | |
| CN106249450A (en) | A kind of LCDs detecting system | |
| KR101618463B1 (en) | System and method for measuring viewing zone characteristics of autostereoscopic 3d image display |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20180724 Address after: 518000 Room 201, building A, No. 1, Qian Wan Road, Qianhai Shenzhen Hong Kong cooperation zone, Shenzhen, Guangdong (Shenzhen Qianhai business secretary Co., Ltd.) Applicant after: Shenzhen super Technology Co., Ltd. Address before: 518053 East Guangdong H-1 East 101, overseas Chinese town, Nanshan District, Shenzhen. Applicant before: Shenzhen SuperD Photoelectronic Co., Ltd. |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |